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MHC-II-independent CD4+ T cells induce colitis in immunodeficient RAG-/- hosts (CROSBI ID 96185)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Trobonjača, Zlatko ; Leithauser, Frank ; Moller, Peter ; Bluethmann, Horst ; Koezuka, Yasuhiko ; MacDonald, Robson ; Reimann Joerg MHC-II-independent CD4+ T cells induce colitis in immunodeficient RAG-/- hosts // Journal of immunology, 166 (2001), 6; 3804-3814-x

Podaci o odgovornosti

Trobonjača, Zlatko ; Leithauser, Frank ; Moller, Peter ; Bluethmann, Horst ; Koezuka, Yasuhiko ; MacDonald, Robson ; Reimann Joerg

engleski

MHC-II-independent CD4+ T cells induce colitis in immunodeficient RAG-/- hosts

CD4(+) alpha beta T cells from either normal C57BL/6 (B6) or MHC-II-deficient (A alpha(-/-) or A beta(-/-)) B6 donor mice engrafted into congenic immunodeficient RAG1(-/-) B6 hosts induced an aggressive inflammatory bowel disease (IBD). Furthermore, CD4(+) T cells from CD1d(-/-) knockout (KO) B6 donor mice but not those from MHC-I(-/-) (homozygous transgenic mice deficient for beta(2)-microglobulin) KO B6 mice induced a colitis in RAG(-/-) hosts. Abundant numbers of in vivo activated (CD69(high)CD44(high)CD28(high)) NK1(+) and NK1(-) CD4(+) T cells were isolated from the inflamed colonic lamina propria (cLP) of transplanted mice with IBD that produced large amounts of TNF-alpha and IFN-gamma but low amounts of IL-4 and IL-10. IBD-associated cLP Th1 CD4(+) T cell populations were polyclonal and MHC-II-restricted when derived from normal B6 donor mice, but oligoclonal and apparently MHC-I-restricted when derived from MHC-II-deficient (A alpha(-/-) or A beta(-/-)) B6 donor mice. cLP CD4(+) T cell populations from homozygous transgenic mice deficient for beta(2)-microglobulin KO B6 donor mice engrafted into RAG(-/-) hosts were Th2 and MHC-II restricted. These data indicate that MHC-II-dependent as well as MHC-II-independent CD4(+) T cells can induce a severe and lethal IBD in congenic, immunodeficient hosts, but that the former need the latter to express its IBD-inducing potential.

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Podaci o izdanju

166 (6)

2001.

3804-3814-x

objavljeno

0022-1767

Povezanost rada

Temeljne medicinske znanosti

Indeksiranost